Evaluation of silica sodalite infused polysulfone mixed matrix membranes during H2/CO2 separation

Global warming and environmental degradation have stimulated the drive towards capture of large point source carbon emissions reducing high energy intensity industrial processes. Mixed membranes infused with porosity silica sodalite are potential useful for pre-combustion CO2 capture. However, development quality mixed matrix is a challenge. In this study, (SSOD) polysulfone (PSF) were developed evaluated The SSOD was obtained via topotactic conversion layered silicates; membrane prepared using phase inversion method. physicochemical nature SSOD/PSF checked XRD, SEM, N2 physisorption at 77 K. Single gas permeation used to check quality. shows that possesses higher surface area 56.56 m2/g pore volume 0.181 cm3/g, when compared hydrothermally-synthesized hydroxy (HSOD) crystals (surface area: 27.43 m2/g; volume: 0.084 cm3/g). asymmetric mechanical strength than ordinary PSF. Loading PSF enhanced its H2 permeance from 4.9 × 10?7 mol/m2·s·Pa but decrease in H2/CO2 separation factor 2.2 0.6. While attributed SSOD, ideal selectivity low still within values reported literature. Increasing loading up 10 wt% performance membrane, displaying 6.5 1.1. Though results study promising, robust synthesis protocol will further enhance both required. Furthermore, more studies required on process optimization techno-economic feasibility